English verb conjugation
MUST FRAME

Regular verb: frame - framed - framed

Affirmation

Simple form	V-ing form
I must frame you must frame he must frame we must frame you must frame they must frame	I must be framing you must be framing he must be framing we must be framing you must be framing they must be framing
Perfect	V-ing perfect
I must have framed you must have framed he must have framed we must have framed you must have framed they must have framed	I must have been framing you must have been framing he must have been framing we must have been framing you must have been framing they must have been framing

Negation

Simple form	V-ing form
I mustn't frame you mustn't frame he mustn't frame we mustn't frame you mustn't frame they mustn't frame	I mustn't be framing you mustn't be framing he mustn't be framing we mustn't be framing you mustn't be framing they mustn't be framing
Perfect	V-ing perfect
I mustn't have framed you mustn't have framed he mustn't have framed we mustn't have framed you mustn't have framed they mustn't have framed	I mustn't have been framing you mustn't have been framing he mustn't have been framing we mustn't have been framing you mustn't have been framing they mustn't have been framing

Interrogative form

Simple form	V-ing form
must I frame? must you frame? must he frame? must we frame? must you frame? must they frame?	must I be framing? must you be framing? must he be framing? must we be framing? must you be framing? must they be framing?
Perfect	V-ing perfect
must I have framed? must you have framed? must he have framed? must we have framed? must you have framed? must they have framed?	must I have been framing? must you have been framing? must he have been framing? must we have been framing? must you have been framing? must they have been framing?

Interro-negative form

Simple form	V-ing form
mustn't I frame? mustn't you frame? mustn't he frame? mustn't we frame? mustn't you frame? mustn't they frame?	mustn't I be framing? mustn't you be framing? mustn't he be framing? mustn't we be framing? mustn't you be framing? mustn't they be framing?
Perfect	V-ing perfect
mustn't I have framed? mustn't you have framed? mustn't he have framed? mustn't we have framed? mustn't you have framed? mustn't they have framed?	mustn't I have been framing? mustn't you have been framing? mustn't he have been framing? mustn't we have been framing? mustn't you have been framing? mustn't they have been framing?